Infectious mononucleosis in the preschool child.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D007244:Infectious Mononucleosis / Q000175:diagnosis / Q000453:epidemiology*; D008199:Lymphadenitis / Q000175:diagnosis